Triple
T18110811
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Investec Oaks |
E433467
|
entity |
| Predicate | hasRacecourseOwner |
P130487
|
FINISHED |
| Object | Epsom Downs Racecourse |
—
|
NE NERFINISHED |
How this triple was built (3 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Epsom Downs Racecourse | Statement: [Investec Oaks, hasRacecourseOwner, Epsom Downs Racecourse]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Epsom Downs Racecourse Context triple: [Investec Oaks, hasRacecourseOwner, Epsom Downs Racecourse]
-
A.
Epsom Downs Racecourse
chosen
Epsom Downs Racecourse is a historic English horse racing venue best known as the home of the Epsom Derby, one of the world’s most prestigious flat races.
-
B.
Gatwick Racecourse
Gatwick Racecourse was a former horse racing venue in West Sussex, England, that once occupied the site now associated with Gatwick Airport and its railway station.
-
C.
Windsor Racecourse
Windsor Racecourse is a popular British horse racing venue located on an island in the River Thames near Windsor, known for its evening flat races and picturesque setting.
-
D.
Kempton Park Racecourse
Kempton Park Racecourse is a major British horse racing venue in Sunbury-on-Thames, Surrey, best known for hosting prominent National Hunt and flat racing events such as the King George VI Chase.
-
E.
Ascot Racecourse
Ascot Racecourse is a world-famous British horse racing venue in Berkshire, best known for hosting the prestigious Royal Ascot meeting attended by members of the royal family.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: hasRacecourseOwner Context triple: [Investec Oaks, hasRacecourseOwner, Epsom Downs Racecourse]
-
A.
hasRacecourse
Indicates that an entity possesses, contains, or is associated with a racecourse facility or track.
-
B.
hasRacecourseFeature
Indicates that something possesses or includes a specific feature or characteristic related to a racecourse.
-
C.
hasOwnerRider
Indicates that an entity (such as an animal or vehicle) has a specific person who both owns it and rides or uses it.
-
D.
hasParkOwner
Indicates that an entity serves as the owner or legal controller of a particular park.
-
E.
racecourseManaged
Indicates that one entity is responsible for operating, organizing, or overseeing the management of a racecourse for another entity.
- F. None of above. chosen
Provenance (4 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69d8b90916008190a1f110bd7ced5473 |
completed | April 10, 2026, 8:47 a.m. |
| NER | Named-entity recognition | batch_69e4ddd2038081909515fb6d17495cbf |
completed | April 19, 2026, 1:51 p.m. |
| PD | Predicate disambiguation | batch_69e43313ca788190baa224269e71de49 |
completed | April 19, 2026, 1:42 a.m. |
| PDg | Predicate description generation | batch_69e438f5ae2c8190b11dee46534fa5a9 |
completed | April 19, 2026, 2:07 a.m. |
Created at: April 10, 2026, 10:28 a.m.